Adding Final Fantasy characters into FOC

I was wondering if a FOC map with Final Fantasy characters would be made. I wish they would add in characters like Sephiroth.....if they did he would kick ass! I know they've already added Cloud in FOCv5, but I'm suggesting his costume should be changed to the Advent Children costume or his SOLDIER costume,it would look better on him. How about adding Squall Leonheart too? He rock.